Struct chalk_engine::strand::Strand

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pub(crate) struct Strand<I: Interner> {
    pub(crate) ex_clause: ExClause<I>,
    pub(crate) selected_subgoal: Option<SelectedSubgoal>,
    pub(crate) last_pursued_time: TimeStamp,
}

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§ex_clause: ExClause<I>§selected_subgoal: Option<SelectedSubgoal>

Index into ex_clause.subgoals.

§last_pursued_time: TimeStamp

Trait Implementations§

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impl<I: Clone + Interner> Clone for Strand<I>

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fn clone(&self) -> Strand<I>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<I: Debug + Interner> Debug for Strand<I>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<I: Interner> HasInterner for Strand<I>

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type Interner = I

The interner associated with the type.
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impl<I: Interner> TypeFoldable<I> for Strand<I>

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fn try_fold_with<E>( self, folder: &mut dyn FallibleTypeFolder<I, Error = E>, outer_binder: DebruijnIndex ) -> Result<Self, E>

Apply the given folder folder to self; binders is the number of binders that are in scope when beginning the folder. Typically binders starts as 0, but is adjusted when we encounter Binders<T> in the IR or other similar constructs.
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fn fold_with( self, folder: &mut dyn TypeFolder<I, Error = Infallible>, outer_binder: DebruijnIndex ) -> Self

A convenient alternative to try_fold_with for use with infallible folders. Do not override this method, to ensure coherence with try_fold_with.

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impl<I> RefUnwindSafe for Strand<I>
where <I as Interner>::InternedGoal: RefUnwindSafe, <I as Interner>::InternedLifetime: RefUnwindSafe, <I as Interner>::InternedProgramClauses: RefUnwindSafe, <I as Interner>::InternedSubstitution: RefUnwindSafe, <I as Interner>::InternedType: RefUnwindSafe,

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impl<I> Send for Strand<I>
where <I as Interner>::InternedGoal: Send, <I as Interner>::InternedLifetime: Send, <I as Interner>::InternedProgramClauses: Send, <I as Interner>::InternedSubstitution: Send, <I as Interner>::InternedType: Send,

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impl<I> Sync for Strand<I>
where <I as Interner>::InternedGoal: Sync, <I as Interner>::InternedLifetime: Sync, <I as Interner>::InternedProgramClauses: Sync, <I as Interner>::InternedSubstitution: Sync, <I as Interner>::InternedType: Sync,

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impl<I> Unpin for Strand<I>
where <I as Interner>::InternedGoal: Unpin, <I as Interner>::InternedLifetime: Unpin, <I as Interner>::InternedProgramClauses: Unpin, <I as Interner>::InternedSubstitution: Unpin, <I as Interner>::InternedType: Unpin,

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impl<I> UnwindSafe for Strand<I>
where <I as Interner>::InternedGoal: UnwindSafe, <I as Interner>::InternedLifetime: UnwindSafe, <I as Interner>::InternedProgramClauses: UnwindSafe, <I as Interner>::InternedSubstitution: UnwindSafe, <I as Interner>::InternedType: UnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> Cast for T

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fn cast<U>(self, interner: <U as HasInterner>::Interner) -> U
where Self: CastTo<U>, U: HasInterner,

Cast a value to type U using CastTo.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, I> Shift<I> for T
where T: TypeFoldable<I>, I: Interner,

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fn shifted_in(self, interner: I) -> T

Shifts this term in one level of binders.
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fn shifted_in_from(self, interner: I, source_binder: DebruijnIndex) -> T

Shifts a term valid at outer_binder so that it is valid at the innermost binder. See [DebruijnIndex::shifted_in_from] for a detailed explanation.
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fn shifted_out_to( self, interner: I, target_binder: DebruijnIndex ) -> Result<T, NoSolution>

Shifts a term valid at the innermost binder so that it is valid at outer_binder. See [DebruijnIndex::shifted_out_to] for a detailed explanation.
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fn shifted_out(self, interner: I) -> Result<T, NoSolution>

Shifts this term out one level of binders.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more